Air Circuit Breaker – 3WT

Air Circuit Breaker – 3WT

Highlights at a glance


  • New electronic trip units (ETUs) with outstanding features.
  • Only two frame sizes cover a broad range of applications up to 66 kA at 500 V, 3- or 4-pole version, fixed-mounted or withdrawable design.

Ease of use

  • User-friendliness in planning, configuration, installation and operation.
  • Wide range of same accessories for both frame sizes can be easily retrofitted.
  • Displays for all electronic trip units (ETUs).

Safety and reliability

  • Global and standardized processes ensure highest product quality.
  • Conforms to international standards and Approvals.


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